Scrolling stuttering when hovering <code> element in https://mcforge.readthedocs.io on Ubuntu 16.04

UNCONFIRMED
Unassigned

Status

()

Core
Layout
P3
normal
UNCONFIRMED
3 months ago
2 months ago

People

(Reporter: Miguel, Unassigned)

Tracking

57 Branch
Unspecified
Linux
Points:
---

Firefox Tracking Flags

(firefox57 wontfix)

Details

(Reporter)

Description

3 months ago
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20170817100132

Steps to reproduce:

My current setup is:
- Ubuntu Xenial 16.04.3 LTS x86_64
- Linux kernel 4.10.0-32-generic
- Firefox 55.0.1+build2-0ubuntu0.16.04.2
- Firefox Nightly (latest build)

Steps to reproduce:
1) Go to this web page: https://mcforge.readthedocs.io/en/latest/gettingstarted/structuring/
2) In that web page find a chunk of code sample made with <code> tag and that has a visible horizontal scrollbar. For this example you can use the JSON code from the "The mcmod.info file" section.
3) Hover the mouse over the sample code
4) Sroll with your mouse wheel

Note: I have tested this on Windows 10 x86_64 with Firefox Nightly and there is no stutter.


Actual results:

Firefox stutters when scrolling. If you scroll further so that you can't see the code sample the stutter will disappear, but if you scroll again to the code sample area the stutter returns.

The stutter disappear after several seconds or when you reload the web page.


Expected results:

No stutter.

Updated

3 months ago
Component: Untriaged → Layout
OS: Unspecified → Linux
Product: Firefox → Core

Updated

2 months ago
Priority: -- → P3

Updated

2 months ago
status-firefox57: --- → wontfix
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